﻿#region License
//
// Author: Pål Fossmo <pal@fossmo.net>
// Copyright (c) 2008 Pål Fossmo
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
#endregion

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Xml.Linq;
using TreeFrog.Document;

namespace TreeFrog.Structure
{
    public class StructureService : IStructure
    {
        private readonly XDocument _document;

        public StructureService(IDocument document)
        {
            _document = document.GetXml();
        }

        #region IStructure Members

        public string InitFolder { get; set; }

        public string Create()
        {
            if (_document == null) throw new ArgumentException("Path is not provided.");

            XDocument deploymentMap = _document;

            IEnumerable<string> directories = from element in deploymentMap.Descendants("Action")
                                              select (string) element.Element("Directory");

            string temporaryPath = null;

            foreach (string directroy in directories)
            {
                temporaryPath = CreateDirectory(directroy);
            }

            return temporaryPath;
        }

        #endregion

        private string CreateDirectory(string directroy)
        {
            string[] directoryElements = directroy.Split('\\');

            string temporaryPath = InitFolder;

            foreach (string directoryElement in directoryElements)
            {
                string builtPath = Path.Combine(temporaryPath, directoryElement);
                temporaryPath = builtPath;
            }

            Directory.CreateDirectory(temporaryPath);
            return temporaryPath;
        }
    }
}